Re: Conditional compilation of debug traces without cpp

[Jean-Pierre Rosen <rosen@adalog.fr>]

guillaume.portail@grospied.enanglais.com a �crit :
> Jean-Pierre Rosen wrote:
> 
>> Switching packages is then not more difficult than changing a #define...
> 
> Nice, thank you ! And thank you for your Debug package, I already know 
> about it.
Forgot to mention: make the fake debug pure, to avoid any elaboration.

> But don't you think that the elaboration of the calls will still exist ?
> Executing the statement :
> 
>     Null_Proc ("I was here" & Function_Call(A+12));
> 
> will always produce a call to Function_Call, even if Null_Proc has a 
> null body, I guess.
Don't want to be pedantic, but just to make sure there is no confustion:
- A declaration is elaborated
- A statement is executed
- An expression is evaluated

Therefore yes, the *execution*  of the call will always involve the 
*evaluation* of the parameters (unless the compiler can prove that this 
evaluation has no side-effects - like a call to a function declared in a 
pure package).
-- 
---------------------------------------------------------
            J-P. Rosen (rosen@adalog.fr)
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